# SISA Compromise Assessment vs Zeek Analysis Tools (ZAT): side-by-side comparison (2026)

[SISA Compromise Assessment](https://cybersectools.com/tools/sisa-compromise-assessment) is a commercial [digital forensics](https://cybersectools.com/categories/digital-forensics) solution by [SISA](https://cybersectools.com/companies/sisa). [Zeek Analysis Tools (ZAT)](https://cybersectools.com/tools/zeek-analysis-tools-zat) is a free [threat hunting](https://cybersectools.com/categories/threat-hunting) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | SISA Compromise Assessment | Zeek Analysis Tools (ZAT) |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Digital Forensics | Threat Hunting |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | – | 451 |
| Last commit | – | Mar 2026 |
| Company | SISA | – |
| Headquarters | – | – |

### Use cases and capabilities

| | SISA Compromise Assessment | Zeek Analysis Tools (ZAT) |
|---|---|---|
| IOC | Yes | – |
| Threat Analysis | Yes | – |
| Dark Web Monitoring | Yes | – |
| Windows Forensics | Yes | – |
| Network Forensic Analysis | Yes | – |
| PCI DSS | Yes | – |
| Log Management | Yes | Yes |
| Evidence Collection | Yes | – |
| Investigation | Yes | – |
| Zeek | – | Yes |

### Core features

**SISA Compromise Assessment**

3 features listed. Sign in on the page to see them.

**Zeek Analysis Tools (ZAT)**

No features listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [SISA Compromise Assessment](https://cybersectools.com/tools/sisa-compromise-assessment) fits if you are a small business.
- [Zeek Analysis Tools (ZAT)](https://cybersectools.com/tools/zeek-analysis-tools-zat) fits if you need a free product and you want an open-source product.

## SISA Compromise Assessment vs Zeek Analysis Tools (ZAT) FAQ

Common questions when comparing SISA Compromise Assessment vs Zeek Analysis Tools (ZAT) for digital forensics.

### What is the difference between SISA Compromise Assessment and Zeek Analysis Tools (ZAT)?

**SISA Compromise Assessment**: Service that detects hidden breaches and indicators of compromise across IT environments. Built by SISA.

**Zeek Analysis Tools (ZAT)**: ZAT is a Python package that processes and analyzes Zeek network security data using machine learning libraries like Pandas, scikit-learn, Kafka, and Spark.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes SISA Compromise Assessment and Zeek Analysis Tools (ZAT)?

**SISA Compromise Assessment** is made by SISA. **Zeek Analysis Tools (ZAT)** is open-source with 451 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is SISA Compromise Assessment a good alternative to Zeek Analysis Tools (ZAT)?

In part. SISA Compromise Assessment and Zeek Analysis Tools (ZAT) are not in the same category on CybersecTools. Both cover Log Management. Key differences: SISA Compromise Assessment is Commercial while Zeek Analysis Tools (ZAT) is Free, Zeek Analysis Tools (ZAT) is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [SISA Compromise Assessment vs Cellebrite Digital Forensics Platform](https://cybersectools.com/compare/cellebrite-digital-forensics-platform-vs-sisa-compromise-assessment)
- [SISA Compromise Assessment vs Telesoft TDAC](https://cybersectools.com/compare/sisa-compromise-assessment-vs-telesoft-tdac)
- [SISA Compromise Assessment vs Magnet Forensics](https://cybersectools.com/compare/magnet-forensics-vs-sisa-compromise-assessment)
- [Zeek Analysis Tools (ZAT) vs Cellebrite Digital Forensics Platform](https://cybersectools.com/compare/cellebrite-digital-forensics-platform-vs-zeek-analysis-tools-zat)
- [Zeek Analysis Tools (ZAT) vs Telesoft TDAC](https://cybersectools.com/compare/telesoft-tdac-vs-zeek-analysis-tools-zat)
- [Zeek Analysis Tools (ZAT) vs Magnet Forensics](https://cybersectools.com/compare/magnet-forensics-vs-zeek-analysis-tools-zat)

## Alternatives to each

- [See all SISA Compromise Assessment alternatives](https://cybersectools.com/alternatives/sisa-compromise-assessment)
- [See all Zeek Analysis Tools (ZAT) alternatives](https://cybersectools.com/alternatives/zeek-analysis-tools-zat)

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Source: https://cybersectools.com/compare/sisa-compromise-assessment-vs-zeek-analysis-tools-zat

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/sisa-compromise-assessment.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on SISA Compromise Assessment and Zeek Analysis Tools (ZAT): funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md